A method for carrying out urban main body function area center detection by utilizing POI data

Abstract

The invention discloses a method for detecting the center of an urban main body functional area by using POI data. The method comprises the following steps: step 1, generating a POI density distribution map; 2, constructing a POI density contour tree; Step 3, simplifying the POI density contour tree; And step 4, detecting the urban main body function area range. According to the method, the POI data is used for replacing urban population general survey data and questionnaires, so that the problem of data updating difficulty caused by traditionally utilizing the population general survey data and the questionnaires is effectively solved; The POI intensity is expressed as a topographic surface, so that the problems that the center and range of the urban main body functional region are possibly limited by preset boundaries and area units and the like are solved; The properties of the center of the urban functional area and the spatial and functional relations between the properties are quantified by constructing the index frequency density and the type proportion.

Description

technical field [0001] The invention relates to a method for detecting the center of an urban functional area by using POI data, and belongs to the technical field of urban calculation and planning. Background technique [0002] The main functional area of ​​the city is an important spatial carrier for the realization of various functions of the city's economy and society, and a form of spatial agglomeration of urban functions. Since the central government proposed "establishing a national spatial planning system", various ministries and regions have carried out exploration work on spatial planning systems and planning coordination mechanisms. For urban spatial planning, identifying the main functional areas of the city and understanding its internal spatial structure is conducive to the formulation of better urban planning. Design and implement polycentric urban development strategies through urban master planning, urban regional planning, and urban system planning, so as t...

AI Technical Summary

Problems solved by technology

The detected center and scope of the main functional area of ​​the city may be limited by these preset boundaries and area units; and data acquisition is difficult, expensive, and the cycle is long

[0007] (2) The traditional method detects the structure of urban functional areas on a specific spatial scale, and cannot construct and characterize the urban structure hierarchy with multiple spatial scales

[0008] (3) The traditional method does not quantify the nature of the center of urban functional areas and the spatial and functional relationship between them when dividing urban functional areas

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